File extension .ECF
Full Name | Developer | Category |
---|---|---|
Microsoft Outlook Add-in Format | N/A | Plugin Files |
The .ECF file extension is used by the Microsoft Outlook application as an Add-in file type. It is primarily associated with the Exchange Client Extension module which allows the program to support and manage exchange accounts. The file stores user login information and server settings allowing Outlook access to exchange servers.
Functionality
When the .ECF file is imported into Outlook, it will become “available” meaning that it is ready for use. The file contains settings that allow Outlook to connect to a Microsoft Exchange server which allows access to accounts like email, contact directories, and calendar entries. Additionally, the ECF contains user authentication data so that the account is accessible without having to re-enter login information. The login information is stored in a secure encrypted format for added security.
Similar Formats
The .ECF file format contains specific functionality that is limited in scope. Other similar file formats that are related include: .SRS, .PRF, and .MCD. These files can also contain related information about the Exchange Server account such as user login data and settings.
Programs for WINDOWS system
After installing the required software, the operating system will usually automatically associate an unknown file type (in this case .ECF) with the new application. If this does not happen, we can help the system a bit by selecting the software for it, which it should always use to open files with the .ECF extension.
When choosing the software we can select the system to use this software every time.
Remember!
Using it for the first time it is good to check whether the .ECF file opened in the application can be read by us and opens in a way that allows us to use it. If everything is in order, select this option the next time you open a file with the .ECF extension. However, if the file has not opened correctly, we have to look for a different software, with which we can open files with the .ECF extension. Select a different software from our list and install it on your computer. After the software is installed, repeat inspection openings of a .ECF file. Sometimes you have to repeat the operation several times.
Other instructions
If none of the programs listed by us to work with the .ECF file has not meet your expectations, you can try searching other websites. But remember to avoid downloading programs "that can open any file". These applications not only have very limited functionality, but may also expose you to expense tens of dollars when purchasing a license.
In the vast majority of cases you will find the program dedicated to support the .ECF file, or any other file format. In addition, there is a chance that it will be a free program, and its functionality (concerning the .ECF file) will be extended to the maximum.
It is also good to check
- if the .ECF file has no errors
- or if it has been copied (or downloaded by the browser) thoroughly
Author’s guidelines

Mr B. Adam
Author of the guidelines / Founder of FileExtension.info
New technologies enthusiast, helping to solve problems with the files.
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